1. First, make sure you're on the Grid theme, version 0.3.0.

2. For each file connected to a product, click on the 'plus' sign right above the file name to upload a dazzling preview!

3. Voila! You're done! Feel free to do a test order and review your changes!

Don't forget:

1. Your files should be in jpg or png format and keep them under 5 MB for a seamless experience.

2. If you want to set previews for your existing files or you have any questions, please reach out to our support team!